package com.fourforfo.fourmall.product.config;

import com.fourforfo.common.utils.R;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.cache.CacheProperties;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.StringRedisSerializer;

import java.time.Duration;

/**
 * Spring Cache配置文件
 */
@EnableConfigurationProperties(CacheProperties.class)//使得本类中能够调用CacheProperties，相当于注入到容器中
@Configuration
@EnableCaching
public class MyRedisCacheConfiguration {
//    @Autowired
//    CacheProperties redisProperties;//也可以直接传入参数CacheProperties，Spring会自动帮我们注入

    /**
     * 配置文件的
     * @return
     */
    @Bean
    public RedisCacheConfiguration getRedisCacheConfiguration(CacheProperties cacheProperties){
        RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig();
        config = config.serializeKeysWith(
                RedisSerializationContext.SerializationPair.fromSerializer(new StringRedisSerializer())
        );//key以String格式保存
        config = config.serializeValuesWith(
                RedisSerializationContext.SerializationPair.fromSerializer(new GenericJackson2JsonRedisSerializer())
        );//value以Json格式保存

        //从CacheProperties配置文件中获取redis配置，该配置位于application.properties中
        CacheProperties.Redis redisProperties = cacheProperties.getRedis();

        if (redisProperties.getTimeToLive() != null) {
            config = config.entryTtl(redisProperties.getTimeToLive());
        }
        if (redisProperties.getKeyPrefix() != null) {
            config = config.prefixKeysWith(redisProperties.getKeyPrefix());
        }
        if (!redisProperties.isCacheNullValues()) {
            config = config.disableCachingNullValues();
        }
        if (!redisProperties.isUseKeyPrefix()) {
            config = config.disableKeyPrefix();
        }
        return config;
    }
}
